:root { --ink:#061d2d; --blue:#0879ce; --blue-deep:#075aa1; --teal:#117a88; --paper:#f8fbfc; --gold:#d7ba75; --line:rgba(8,91,156,.17); }
* { box-sizing:border-box; }
html { scroll-behavior:smooth; background:var(--ink); }
body { margin:0; color:var(--ink); background:var(--paper); font-family:"Yu Gothic","Hiragino Kaku Gothic ProN","Noto Sans JP",sans-serif; -webkit-font-smoothing:antialiased; }
img,svg { display:block; }
a { color:inherit; text-decoration:none; }

.site-header { position:absolute; inset:0 0 auto; z-index:20; height:104px; display:flex; align-items:center; justify-content:space-between; padding:0 clamp(24px,5vw,78px); color:#fff; border-bottom:1px solid rgba(255,255,255,.2); background:linear-gradient(180deg,rgba(2,25,42,.38),transparent); }
.brand { display:inline-flex; align-items:center; gap:15px; }
.fcs-logo-shell { display:grid; place-items:center; width:54px; height:72px; padding:0; overflow:hidden; background:transparent; filter:drop-shadow(0 7px 14px rgba(0,25,48,.2)); }
.fcs-logo-shell img { width:100%; height:100%; object-fit:contain; }
.brand-mark { font-family:Georgia,"Times New Roman",serif; font-size:27px; font-weight:700; letter-spacing:.06em; line-height:1; color:var(--gold); }
.brand-name { display:flex; flex-direction:column; gap:4px; }
.brand-name strong { font-size:14px; letter-spacing:.14em; }
.brand-name small { font:9px/1.2 Arial,sans-serif; letter-spacing:.22em; opacity:.65; }
.site-header nav { display:flex; align-items:center; gap:34px; font-size:12px; letter-spacing:.1em; }
.site-header nav>a { position:relative; padding:10px 0; }
.site-header nav>a:not(.header-group-link)::after { content:""; position:absolute; left:0; right:100%; bottom:3px; height:1px; background:var(--gold); transition:right .3s ease; }
.site-header nav>a:hover::after { right:0; }
.header-group-link { display:inline-flex; align-items:center; gap:16px; padding:10px 14px 10px 17px!important; color:#cf1f2f; border:1px solid rgba(255,255,255,.7); background:rgba(255,255,255,.94); box-shadow:0 8px 24px rgba(0,25,48,.12); transition:.25s ease; }
.header-group-link:hover { background:#fff; border-color:#fff; transform:translateY(-1px); }
.header-group-link>span:last-child { display:grid; place-items:center; width:28px; height:28px; border-left:1px solid rgba(207,31,47,.2); padding-left:10px; }
.header-group-link svg,.hero-cta svg,.group-card svg,.chapter-group-logo svg { width:18px; fill:none; stroke:currentColor; stroke-width:1.5; }
.ehg-logo { display:block; flex:none; object-fit:contain; }
.ehg-logo-header { width:124px; height:24px; }

.hero { --hero-viewport:100vh; position:relative; min-height:var(--hero-viewport); height:auto; padding:144px 0 116px; overflow:hidden; display:flex; align-items:center; color:#fff; background:#062733; }
@supports (height:100svh) { .hero { --hero-viewport:100svh; } }
.hero-photo { position:absolute; inset:0; background-image:linear-gradient(90deg,rgba(2,27,48,.79),rgba(2,48,70,.43) 46%,rgba(1,60,87,.05) 77%),linear-gradient(0deg,rgba(2,33,52,.56),transparent 44%),url("assets/hero-setouchi.png"); background-size:cover; background-position:center; transform:scale(1.02); animation:hero-drift 18s ease-out both; }
.hero-noise { position:absolute; inset:0; opacity:.14; pointer-events:none; background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.35'/%3E%3C/svg%3E"); }
.hero-content { position:relative; z-index:2; width:min(1160px,calc(100% - 48px)); margin:0 auto; }
.eyebrow { margin:0 0 30px; color:rgba(255,255,255,.72); font:11px/1.4 Arial,sans-serif; letter-spacing:.24em; }
.eyebrow span { color:var(--gold); padding:0 10px; }
.brand-tagline { width:max-content; max-width:100%; margin:0 0 22px; padding:9px 0 9px 19px; border-left:3px solid var(--gold); font-family:"Yu Mincho","Hiragino Mincho ProN",serif; font-size:clamp(16px,1.55vw,22px); font-weight:500; letter-spacing:.15em; color:#fff; text-shadow:0 3px 18px rgba(0,0,0,.18); }
.hero h1 { margin:0; font-family:"Yu Mincho","Hiragino Mincho ProN",serif; font-size:clamp(46px,6.25vw,92px); font-weight:500; line-height:1.35; letter-spacing:.04em; text-shadow:0 4px 28px rgba(0,0,0,.18); }
.hero h1 em { color:var(--gold); font-style:normal; }
.hero-lead { max-width:680px; margin:33px 0 39px; font-family:"Yu Mincho","Hiragino Mincho ProN",serif; font-size:clamp(14px,1.35vw,18px); line-height:2; letter-spacing:.08em; color:rgba(255,255,255,.76); }
.hero-cta { display:inline-flex; align-items:center; gap:22px; font:10px Arial,sans-serif; letter-spacing:.24em; }
.hero-cta>span { display:grid; place-items:center; width:46px; height:46px; border:1px solid rgba(255,255,255,.42); border-radius:50%; transition:.25s ease; }
.hero-cta:hover>span { background:var(--gold); color:var(--ink); transform:translateX(4px); }
.anniversary { position:absolute; z-index:2; right:clamp(28px,6vw,94px); bottom:76px; width:132px; height:132px; border:1px solid rgba(255,255,255,.32); border-radius:50%; display:flex; flex-direction:column; align-items:center; justify-content:center; backdrop-filter:blur(6px); color:rgba(255,255,255,.75); }
.anniversary span { font:8px Arial,sans-serif; letter-spacing:.24em; }
.anniversary strong { margin:5px 0 4px; font:32px/1 Georgia,serif; color:#fff; }
.anniversary i { width:22px; height:1px; background:var(--gold); margin-bottom:6px; }
.scroll-hint { position:absolute; z-index:3; left:50%; top:calc(var(--hero-viewport) - 80px - env(safe-area-inset-bottom,0px)); display:flex; flex-direction:column; align-items:center; gap:8px; transform:translateX(-50%); color:#fff; }
.scroll-hint span { font:9px/1.3 Arial,sans-serif; letter-spacing:.24em; white-space:nowrap; text-shadow:0 2px 9px rgba(0,0,0,.65); }
.scroll-hint i { position:relative; display:grid; place-items:center; width:38px; height:38px; border:1px solid rgba(255,255,255,.58); border-radius:50%; background:rgba(2,33,52,.22); backdrop-filter:blur(4px); }
.scroll-hint i::after { content:""; width:7px; height:7px; border-right:1.5px solid #fff; border-bottom:1.5px solid #fff; transform:translateY(-3px) rotate(45deg); animation:scroll-arrow 1.8s ease-in-out infinite; }
.reveal { opacity:0; transform:translateY(24px); animation:reveal .85s cubic-bezier(.16,1,.3,1) forwards; }
.reveal-1 { animation-delay:.15s; }.reveal-2 { animation-delay:.3s; }.reveal-3 { animation-delay:.52s; }.reveal-4 { animation-delay:.72s; }

.new-chapter { position:relative; overflow:hidden; padding:clamp(96px,11vw,170px) max(24px,calc((100vw - 1160px)/2)); background:radial-gradient(circle at 2% 18%,rgba(35,157,219,.14),transparent 28%),linear-gradient(135deg,#fff 0%,#f4fbff 48%,#eef7fb 100%); }
.new-chapter::before { content:"FCS"; position:absolute; right:-.05em; top:.12em; font:clamp(190px,24vw,390px)/1 Georgia,serif; color:rgba(4,115,196,.035); pointer-events:none; }
.new-chapter>* { position:relative; z-index:1; }
.section-kicker { display:flex; align-items:center; gap:16px; color:var(--blue-deep); margin-bottom:55px; }
.section-kicker svg { width:68px; fill:none; stroke:currentColor; stroke-width:1.15; }
.section-kicker span { font:10px Arial,sans-serif; letter-spacing:.3em; }
.section-kicker.dark { color:var(--gold); margin-bottom:30px; }
.chapter-grid { display:grid; grid-template-columns:.82fr 1.18fr; gap:clamp(58px,8vw,118px); align-items:start; }
.chapter-intro { padding-top:29px; border-top:3px solid var(--blue); }
.chapter-lead { margin:0; color:var(--ink); font-family:"Yu Mincho","Hiragino Mincho ProN",serif; font-size:clamp(25px,2.75vw,38px); font-weight:500; line-height:1.65; letter-spacing:.07em; }
.company h2 { margin:0; font-family:"Yu Mincho","Hiragino Mincho ProN",serif; font-size:clamp(38px,4.6vw,66px); font-weight:500; line-height:1.55; letter-spacing:.05em; }
.chapter-group-logo { width:242px; margin-top:39px; padding:19px 22px 16px; display:flex; align-items:center; justify-content:space-between; gap:20px; color:var(--blue-deep); background:#fff; border:1px solid rgba(207,31,47,.18); box-shadow:0 18px 42px rgba(7,90,161,.13); transition:transform .25s ease,box-shadow .25s ease; }
.chapter-group-logo:hover { transform:translateY(-3px); box-shadow:0 22px 48px rgba(7,90,161,.2); }
.ehg-logo-stacked { width:92px; height:60px; }
.chapter-group-logo>span:last-child { display:flex; flex-direction:column; align-items:center; gap:7px; font:7px/1.3 Arial,sans-serif; letter-spacing:.17em; color:var(--blue-deep); }
.chapter-copy { padding-top:33px; border-top:1px solid var(--line); }
.chapter-copy p { margin:0 0 28px; font-size:15px; line-height:2.2; color:#42525a; }
.chapter-copy .expect { margin-top:42px; color:var(--blue-deep); font-family:"Yu Mincho",serif; font-size:23px; }
.heritage-line { margin-top:clamp(70px,8vw,112px); padding-top:35px; border-top:1px solid var(--line); display:grid; grid-template-columns:auto 1fr auto 1fr auto; gap:34px; align-items:center; }
.heritage-line div { display:flex; flex-direction:column; gap:8px; }
.heritage-line strong { font:30px Georgia,serif; letter-spacing:.05em; }
.heritage-line span { font-size:10px; color:#68747a; letter-spacing:.16em; }
.heritage-line i { height:1px; background:linear-gradient(90deg,var(--gold),rgba(213,183,118,.15)); }
.heritage-line .future strong { color:var(--blue-deep); font-size:22px; letter-spacing:.14em; }

.renewal { position:relative; min-height:650px; overflow:hidden; display:grid; place-items:center; text-align:center; color:#fff; background:radial-gradient(circle at 50% 36%,#1685aa 0%,#075a80 30%,#06334b 66%,#031d2d 100%); }
.renewal::before,.renewal::after { content:""; position:absolute; left:-5%; width:110%; height:1px; background:rgba(255,255,255,.08); transform:rotate(-8deg); }
.renewal::before { top:25%; }.renewal::after { bottom:26%; }
.renewal-orbit { position:absolute; width:min(610px,85vw); aspect-ratio:1; border:1px solid rgba(213,183,118,.22); border-radius:50%; }
.renewal-orbit::before,.renewal-orbit::after { content:""; position:absolute; border:1px solid rgba(255,255,255,.07); border-radius:50%; }
.renewal-orbit::before { inset:58px; }.renewal-orbit::after { inset:122px; }
.renewal-content { position:relative; z-index:2; padding:90px 24px; }
.renewal-content>p:first-child { margin:0 0 25px; font:10px Arial,sans-serif; letter-spacing:.34em; color:var(--gold); }
.renewal h2 { margin:0; font-family:"Yu Mincho",serif; font-size:clamp(42px,5vw,70px); font-weight:500; line-height:1.45; letter-spacing:.08em; }
.renewal h2 em { font-style:normal; color:var(--gold); }
.renewal-rule { width:1px; height:44px; background:var(--gold); margin:28px auto; }
.renewal-note { margin:0; font-size:14px; line-height:2; letter-spacing:.08em; color:rgba(255,255,255,.7); }
.renewal-number { position:absolute; right:-.02em; bottom:-.3em; font:280px/1 Georgia,serif; color:rgba(255,255,255,.025); }

.company { display:grid; grid-template-columns:.75fr 1.25fr; gap:clamp(65px,9vw,140px); padding:clamp(100px,11vw,165px) max(24px,calc((100vw - 1160px)/2)); color:#fff; background:linear-gradient(135deg,#051d2e 0%,#062d43 52%,#06364a 100%); }
.company-heading { position:sticky; top:80px; align-self:start; }
.company h2 { font-size:clamp(42px,5vw,64px); }
.company-heading>p { margin:28px 0 0; font-family:"Yu Mincho",serif; font-size:15px; color:rgba(255,255,255,.52); letter-spacing:.09em; }
.profile-list { margin:0; }
.profile-list>div { display:grid; grid-template-columns:135px 1fr; padding:25px 0; border-top:1px solid rgba(255,255,255,.13); }
.profile-list>div:last-child { border-bottom:1px solid rgba(255,255,255,.13); }
.profile-list dt { font-size:11px; letter-spacing:.14em; color:var(--gold); }
.profile-list dd { margin:0; font-size:14px; line-height:1.9; letter-spacing:.04em; color:rgba(255,255,255,.83); }
.group-card { grid-column:2; display:flex; align-items:center; justify-content:space-between; margin-top:-42px; padding:30px 34px; color:var(--ink); background:#fff; border:1px solid #fff; box-shadow:0 22px 52px rgba(0,15,30,.18); transition:.25s ease; }
.group-card:hover { background:#f8fbfd; border-color:rgba(207,31,47,.35); transform:translateY(-2px); }
.group-card>span { display:flex; flex-direction:column; gap:8px; }
.group-card small { font:9px Arial,sans-serif; letter-spacing:.25em; color:#cf1f2f; }
.ehg-logo-card { width:190px; height:33px; margin:3px 0 2px; }
.group-card em { font-size:11px; font-style:normal; color:#687780; }
.group-card>i { display:grid; place-items:center; width:52px; height:52px; border-radius:50%; background:#cf1f2f; color:#fff; }

footer { display:flex; align-items:center; justify-content:space-between; gap:30px; padding:48px clamp(24px,5vw,78px); background:#04151c; color:#fff; border-top:1px solid rgba(255,255,255,.08); }
.footer-brand { display:flex; align-items:center; gap:15px; }
.footer-logo-shell { display:grid; place-items:center; width:43px; height:55px; padding:0; background:transparent; }
.footer-logo-shell img { width:100%; height:100%; object-fit:contain; }
.footer-brand>span:last-child { display:flex; flex-direction:column; gap:5px; }
.footer-brand strong { font-size:12px; letter-spacing:.12em; }
.footer-brand small,footer>p { margin:0; font:8px Arial,sans-serif; letter-spacing:.18em; color:rgba(255,255,255,.35); }
.mobile-only { display:none; }

@keyframes reveal { to { opacity:1; transform:translateY(0); } }
@keyframes hero-drift { from { transform:scale(1.08); } to { transform:scale(1.02); } }
@keyframes scroll-arrow { 0%{opacity:0;transform:translateY(-5px) rotate(45deg)} 35%{opacity:1} 100%{opacity:0;transform:translateY(5px) rotate(45deg)} }

@media (max-width:820px) {
  .site-header { height:82px; padding:0 18px; }
  .fcs-logo-shell { width:46px; height:62px; padding:3px 5px; }
  .brand-name strong { font-size:12px; }
  .brand-name small { font-size:7px; letter-spacing:.15em; }
  .site-header nav>a:not(.header-group-link) { display:none; }
  .header-group-link { font-size:0; gap:0; width:42px; height:42px; padding:0!important; justify-content:center; border-radius:50%; }
  .ehg-logo-header { display:none; }
  .header-group-link>span:last-child { width:auto; height:auto; padding:0; border:0; }
  .hero { padding:104px 0 106px; }
  .hero-photo { background-position:62% center; background-image:linear-gradient(90deg,rgba(2,30,53,.76),rgba(3,56,80,.25)),linear-gradient(0deg,rgba(3,31,50,.66),transparent 55%),url("assets/hero-setouchi.png"); }
  .hero-content { width:calc(100% - 48px); margin:0 auto; }
  .hero h1 { font-size:clamp(39px,10.5vw,58px); line-height:1.48; }
  .eyebrow { font-size:8px; letter-spacing:.16em; white-space:nowrap; }
  .brand-tagline { font-size:14px; letter-spacing:.1em; margin-bottom:19px; }
  .hero-lead { font-size:13px; line-height:1.9; }
  .anniversary { width:96px; height:96px; right:22px; bottom:28px; }
  .anniversary strong { font-size:24px; }
  .scroll-hint i { width:34px; height:34px; }.mobile-only { display:block; }
  .chapter-grid { grid-template-columns:1fr; gap:50px; }
  .chapter-intro { padding-top:23px; }
  .chapter-lead { font-size:clamp(25px,7.5vw,34px); }
  .chapter-group-logo { width:218px; margin-top:30px; padding:16px 19px 14px; }
  .ehg-logo-stacked { width:82px; height:53px; }
  .chapter-copy { padding-top:28px; }
  .heritage-line { grid-template-columns:auto 1fr auto; gap:15px; }
  .heritage-line i:nth-of-type(2),.heritage-line .future { display:none; }
  .heritage-line strong { font-size:24px; }
  .renewal { min-height:590px; }.renewal-number { font-size:170px; }
  .company { grid-template-columns:1fr; gap:58px; }
  .company-heading { position:static; }
  .group-card { grid-column:1; margin-top:-18px; padding:25px 22px; }
  .ehg-logo-card { width:155px; height:27px; }
  .profile-list>div { grid-template-columns:92px 1fr; gap:16px; padding:22px 0; }
  .profile-list dd { font-size:12px; }
  footer { flex-direction:column; align-items:flex-start; }
}

@media (min-width:821px) and (max-height:820px) {
  .hero { padding-top:128px; }
  .hero h1 { font-size:clamp(40px,min(6.25vw,9vh),72px); }
  .eyebrow { margin-bottom:20px; }
  .brand-tagline { margin-bottom:16px; }
  .hero-lead { margin:22px 0 26px; }
  .anniversary { width:100px; height:100px; bottom:26px; }
}

@media (max-width:820px) and (max-height:760px) {
  .hero h1 { font-size:clamp(30px,9vw,46px); line-height:1.3; }
  .eyebrow { margin-bottom:14px; white-space:normal; }
  .brand-tagline { margin-bottom:12px; padding-top:6px; padding-bottom:6px; }
  .hero-lead { margin:16px 0 20px; font-size:12px; line-height:1.8; }
  .hero-cta>span { width:40px; height:40px; }
  .anniversary { width:78px; height:78px; bottom:18px; right:18px; }
  .anniversary strong { font-size:20px; }
}

@media (max-height:560px) {
  .site-header { height:70px; }
  .fcs-logo-shell { width:38px; height:52px; }
  .hero { padding:84px 0 80px; }
  .hero h1 { font-size:clamp(24px,5.8vh,32px); line-height:1.25; }
  .eyebrow { font-size:8px; margin-bottom:8px; white-space:normal; }
  .brand-tagline { font-size:12px; line-height:1.4; padding:6px 0 6px 12px; margin-bottom:8px; }
  .hero-lead { font-size:11px; line-height:1.6; margin:8px 0 10px; }
  .hero-cta { font-size:8px; gap:12px; }
  .hero-cta>span { width:32px; height:32px; }
  .anniversary { width:auto; height:auto; right:18px; bottom:20px; flex-direction:row; gap:6px; padding:8px 10px; border-radius:30px; }
  .anniversary strong { font-size:15px; margin:0; }
  .anniversary i { display:none; }
  .anniversary span { font-size:7px; letter-spacing:.12em; }
}

@media (prefers-reduced-motion:reduce) {
  html { scroll-behavior:auto; }
  *,*::before,*::after { animation-duration:.01ms!important; animation-iteration-count:1!important; }
}